Nut-lock.



No. 850,665. P'ATENTED APR. 16, 1907. H. E. MARSGH.

NUT LOCK.

APPLICATION FILED SEPT. 29, 1906.

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To all wltom it mag concern.

UNIT D STAIEQEI-ENT OFFICE. o

HOWARD Manson, .oI OATASAUQUA, PENNSYLVANIA,

. Specification of Letters Patent,

Patented April. 16, 1907,

Appliqationfiled September 29 1906. serial F0. 8363116.

me ans for locking 8. nutto a bolt and the ob+ ject throughzwhich thebolt is passed and t0: 'firoyidemeans Whereb I the nut, may be read- 'y'readjusted upon t e bolt and locked in saidreadjusted" position. This.-'and other objects may be'att'ained by means of the constructionllustrated inthe} accompanying j drawings,inwhich I I Figure 1-is a side elevation. of a bolt and. nut held in adjusted position upona piece of.

metal or other matenal by means'of my nut-" look} Fig. 12' is anunderside plan iew ofmy nutlocl; before the radial wings or In s havebeen bent up against the sides of t e; nut.

Fig. 3 is-"a detail-section on the line 3 3' Fig.2." p Referringtothedrawings; for a more pan; ticular descriptionof my invention, thenuneral 1- designatesa bolt of ordinary construction, and 2 is a pieceof metal or; other material through which the bolt 1 is-passed, the head3 of said. bolt bearing against one side oiithe object 2 and theopposite end of said bolt being. threaded in the usual manner, as at 4,forjan ordinary nut 5. y Y

My nut,-lockcon'sists of a washer, referably made of malleablesheet-iron and aving a central bolt-aperture 6 and a'series' of ra dialarms'7. Fittediu a ertures'surrou nd inghthe bolt-hole Gare t elocking-pins 8,. said pins being formedof hardened'steel and provided:with a penetrating point 9 and a shouldered shank 10, said shank beingfitted into openings 11 in the washer with the i1 per surface of saidshank lyingflu'sh with tll e rbent up a ainst the sides of-the nut.-

-. From t e foregoing it will be ot'Wious that I a nut-lock made:- inaccordance with my invention is of simple construction, can be pro- 1claim is-.

upper surface of w surface of the washer, substantially as de- 11 per;surface of the. washer, as shown in I 1 1g- 3. It is to' be noted thatthe shanks 10 'of the locking-pins '8 are merely seated within briefly.described as follows: The bolt I having been passed through the object2', the nutlock placed uponthe bolt withvthe arms-'7 lyin jflat in thelane with the Washer and the ockingspins eing disposed against thesurface, of theobject 2.

I he nut '5 is then fturned-u on the threaded portion 4 of the "theperforations 11 of thejwasher and are- Jheldtherein by friction only. yf Tha -operation of imy. nut-lockhhmy be bolt-unti the penetratingpoints 9 are embedded Within the surface ofthe object 2,. and-the?radial arms- 7 are then bent upward. against thesides of the nut 5, thusholding the nut firmlyin place against the object-2 and preventing itfrom turning; upon the,

bolt 4. -'VVheneye'r it islfound necessary to readjustthe nut 5 upon theboltfthe arms 7 I may be, bent downward and'the nut readjusted, afterwhich the arms may again be duced at slight cost, will firmly secure anut to a bolt,and permitthe nut'to be readjusted whenever deslred. l

Y Haying thus describedthe invention, What A' nut-lock comprising awasher rovided withradial arms and aseries of stee locking ins fittedinapertures in said Washer, said coking-pins each scribed. I Intestimony whereof I afiix my signature in presence of two witnesses.

, HOWARD E. MARSCH. f

Witnesses: I

WILLIAM WATKINS, RE BEN '-OTT.

Biovic'ld with a-shank, the ch is flush with the upper

